A variable is an object that stores information local to the process and subprogram (procedures and functions) in which it is defined. A variable's values can ...
2020年5月23日 — Variable use in VHDL ... I was reading some codes in VHDL and saw this example: signal count : integer range 0 to width; begin process(clk, rst) ...
Variables keep their value from one process call to the next, i.e. if a variable is read before a value has been assigned, the variable will have to show ...
2022年6月30日 — The most obvious difference is that variables use the := assignment symbol whereas signals use the <= assignment symbol. However the differences ...
A Variable may be given an explicit initial value when it is declared. If a variable is not given an explicit value, it's default value will be the leftmost ...